These runs are examined for evidence of accelerated climate change associated with the removal of sea ice, particularly due to increasing surface albedo feedback. (gfdl.noaa.gov)
Virtually ice - free summers in the arctic sea could well arrive by 2030, with troubling implications for accelerated albedo feedback and possibly disruptive changes in the jet stream. (deepclimate.org)
It probably had to do with things like albedo feedbacks and possibly solar forcings that we don't understand yet. (judithcurry.com)